I could pressure-cook you could pressure-cook he could pressure-cook we could pressure-cook you could pressure-cook they could pressure-cook
V-ing form
I could be pressure-cooking you could be pressure-cooking he could be pressure-cooking we could be pressure-cooking you could be pressure-cooking they could be pressure-cooking
Perfect
I could have pressure-cooked you could have pressure-cooked he could have pressure-cooked we could have pressure-cooked you could have pressure-cooked they could have pressure-cooked
V-ing perfect
I could have been pressure-cooking you could have been pressure-cooking he could have been pressure-cooking we could have been pressure-cooking you could have been pressure-cooking they could have been pressure-cooking
Negation
Simple form
I could not pressure-cook you could not pressure-cook he could not pressure-cook we could not pressure-cook you could not pressure-cook they could not pressure-cook
V-ing form
I could not be pressure-cooking you could not be pressure-cooking he could not be pressure-cooking we could not be pressure-cooking you could not be pressure-cooking they could not be pressure-cooking
Perfect
I could not have pressure-cooked you could not have pressure-cooked he could not have pressure-cooked we could not have pressure-cooked you could not have pressure-cooked they could not have pressure-cooked
V-ing perfect
I could not have been pressure-cooking you could not have been pressure-cooking he could not have been pressure-cooking we could not have been pressure-cooking you could not have been pressure-cooking they could not have been pressure-cooking
Interrogative form
Simple form
could I pressure-cook? could you pressure-cook? could he pressure-cook? could we pressure-cook? could you pressure-cook? could they pressure-cook?
V-ing form
could I be pressure-cooking? could you be pressure-cooking? could he be pressure-cooking? could we be pressure-cooking? could you be pressure-cooking? could they be pressure-cooking?
Perfect
could I have pressure-cooked? could you have pressure-cooked? could he have pressure-cooked? could we have pressure-cooked? could you have pressure-cooked? could they have pressure-cooked?
V-ing perfect
could I have been pressure-cooking? could you have been pressure-cooking? could he have been pressure-cooking? could we have been pressure-cooking? could you have been pressure-cooking? could they have been pressure-cooking?
Interro-negative form
Simple form
could I not pressure-cook? could you not pressure-cook? could he not pressure-cook? could we not pressure-cook? could you not pressure-cook? could they not pressure-cook?
V-ing form
could I not be pressure-cooking? could you not be pressure-cooking? could he not be pressure-cooking? could we not be pressure-cooking? could you not be pressure-cooking? could they not be pressure-cooking?
Perfect
could I not have pressure-cooked? could you not have pressure-cooked? could he not have pressure-cooked? could we not have pressure-cooked? could you not have pressure-cooked? could they not have pressure-cooked?
V-ing perfect
could I not have been pressure-cooking? could you not have been pressure-cooking? could he not have been pressure-cooking? could we not have been pressure-cooking? could you not have been pressure-cooking? could they not have been pressure-cooking?